Ceiling Concealed Duct_Built in (Low Static) _ 21
10. Installation
Indoor Units
• Select and mark the position for fixing bolts.
• Drill the hole for set anchor on the face of ceiling.
• Insert the set anchor and washer onto the suspension
bolts for locking the suspension bolts on the ceiling.
• Mount the suspension bolts to the set anchor firmly.
• Secure the installation plates onto the suspension
bolts (adjust level roughly) using nuts, washers and
spring washers.
Tighten the nut and bolt to prevent unit falling.
1 Set anchor
Old building New building
2 Plate washer
3 Spring washer
4 Nut
5 Suspension
bolts
10.3 Connecting Cables
Connect the wires to the terminals on the control board individually according to the outdoor unit connection.
• Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of indoor unit respectively
Clamping of cables
1) Arrange 2 power cables on the control panel.
2) First, fasten the steel clamp with a screw to the inner boss of control panel.
3)
For the cooling model, fix the other side of the clamp with a screw strongly. For the heat pump model, put the
0.75mm
2
cable(thinner cable) on the clamp and tighten it with a plastic clamp to the other boss of the control panel.
SODU B SODU A
IDU B IDU A INT B INT A
A-- ----BAB
GND 12V
DRY2DRY1
INTERNETIDUSODU
[Type 2]
[Type 1]
[Indoor Unit side]
[Outdoor Unit side]
Terminal block of outdoor unit
IDU IDU
Outdoor unit
Indoor unit
Central controller
SODU SODU
DRY2GND12V
DRY1
CEN
CEN
[Type 3]
Terminal Block Indoor Terminal Block Indoor
L(L1) N(L2) 3(A) 4(B)
INDOOR POWER INPUT
Terminal Block Indoor Terminal Block Indoor
L(L1) N(L2) 3(A) 4(B)
INDOOR POWER INPUT
Terminal Block Indoor Terminal Block Indoor
L(L1) N(L2) 3(A) 4(B)
INDOOR POWER INPUT
Make sure that the screws of the terminal are not from loose.
WARNING
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